GRACE YEE YAN LAI M.D., PH. D.
NPI 1851785109
Neurological Surgery in San Francisco, CA
About Grace Yee Yan Lai M.d., Ph. D. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GRACE YEE YAN LAI M.D., PH. D. (NPI 1851785109) is an individual neurological surgery provider in San Francisco, California, licensed in California (A176698) and active in the NPI registry since March 2015. She is enrolled in Medicare PECOS and is a graduate of University Of California, San Diego School Of Medicine (2015).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Grace Yee Yan Lai M.d., Ph. D. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Grace Lai reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
Omaha, NE 68198
- Reassigned Medicare billing, Nebraska enrollment
- 2,154 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94143 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Grace Lai's NPI number?
The NPI number for Grace Lai is 1851785109. It was assigned to this individual provider in the NPPES registry on March 25, 2015.
Where is Grace Lai located?
Grace Lai practices at 550 16th St, San Francisco, CA 94143. The listed phone number is (415) 476-3581.
What is Grace Lai's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
Is Grace Lai enrolled in Medicare?
Yes. Grace Lai is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Grace Lai's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Grace Lai reassigns Medicare benefits to 2 organizations: Ucsf Medical Group Business Services (San Francisco, CA) and Unmc Physicians (Omaha, NE). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Grace Lai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Grace Lai accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Sunflower Health Plan, Blue Cross and Blue Shield of Nebraska and Oscar Insurance Company and 1 other insurer list Grace Lai as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Grace Lai was last updated on June 30, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.